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Long-Term Debt (Tables)
6 Months Ended
Jun. 30, 2023
Debt Disclosure [Abstract]  
Schedule of Long-term Debt
Long-term debt consisted of the following (in millions):
June 30,
2023
December 31,
2022
Senior Secured Credit Facility:
Borrowings under $460 million revolving credit facility, due November 2024$— $31.5 
Term B loan facility, due April 2025490.8 490.8 
Unsecured Senior Notes, due May 2028550.0 550.0 
1,040.8 1,072.3 
Unamortized deferred loan costs(5.1)(5.7)
$1,035.7 $1,066.6